F12.2
Conditions
Interventions
Group 1: Intervention training - Experimental group (EG):
Participants randomly allocated to the experimental group will receive six CAAT sessions. In each session, 200 pictures with cannabis-associa
Sponsors
LWL Universitätsklinik Hamm für Kinder- und Jugendpsychiatrie, Psychotherapie und Psychosomatik
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: primary diagnosis of cannabis addiction, inpatient treatment
Exclusion criteria
Exclusion criteria: Other primary substance use disorder, acute psychotic episode, low German language skills
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcome is the change in the approach tendency towards cannabis-assiciated stimuli. For this, a "cognitive bias score" is calculated which subtracts the response time for approaching a cannabis-associated stimulus from the response time for avoiding a cannabis-associated stimulus. A positive value suggests a approach tendency regarding cannabis-associated stimuli, a negative value suggests avoidance tendency. The approach behavior towards cannabis-associated stimuli will be measured with an approach-avoidance task which is based on the AAT of Rinck and Becker (2007). In this task, which is performed on the computer or tablet app, the participants receive an implicit instruction - i.e. they must decide by the color of the picture frame whether they push or pull a picture. Pushing a picture away goes along with a decrease in picture size, whereas pulling a picture closer result in an increased size (zoom-effect). The present study will use two categories of pictures - 200 pictures with cannabis-associated and 200 pictures with neutral content are randomly displayed on the tablet or computer screen. One picture category is always presented with a blue picture frame and the other picture category with a purple picture frame. 50% of cannabis-related images and 50% of neutral images are pushed (avoidance movement), respectively 50% of the stimuli of both categories are pulled (approach movement) (like in the CG training). The pictures will be presented one by one and will appear in a quasi-randomized order. Participants start with 20 practice trials, followed by the 400 test trials. The AAT will be administered before training (pre), after six trainings sessions (post) as well as at follow up 3 months later to measure the approach and avoidance behavior. This AAT version is also used as control/ placebo training. Another primary outcome is change in cannabis craving and cannabis consume (relapses). The cannabis use and cannabis craving will be measured | — |
Secondary
| Measure | Time frame |
|---|---|
| The secondary outcome criteria are the changes in the clinical and addiction-related symptomatology . Before the fist trainings session, after 6 trainings sessions and three months after trainings completion the following clinical parameters will be measured with the following questionnaires: Alcohol use: AUDIT- Alkohol Use Disorder Indentifikation Test (Saunders et al., 1993); Nicotine use: FTND – Fagerstroem Test for Nicotin Dependence (Bleich, Havemann-Reinecke, & Kornhuber, 2002); Cannabis consume: CUDIT – Cannabis Use Disorder Identifikation Test (Adamson & Sellman, 2003); Marihuana Craving: MCQ- Marijuana Craving Questionnaire (Heishman et al., 2001); Online behavior: OSVK-S – Scale of online addiction behavior in children and adolescents (Wölfling, Müller, & Beutel, 2010); Sensation Seeking: NISS – Need Inventory of Sensation Seeking (Roth, Hammelstein, & Brähler, 2014); Temperament and Charakter: JTCI- Junior Temperament and Charakter Inventory (Goth & Schmeck, 2009); Abstinence confidence: HEISA-16 - Heidelberg scales for abstinence confidence (Körkel, & Schindler, 2004); State of Change: VSS – Stages of change scale (Heidenreich, Hoyer, & Fecht, 2001); Depression: BDI- Becks Depression Inventory (Beck et al., 2006); Sleeping behavior: PSQI- Pittsburgh Sleepquality Index (Buysse , Reynolds, Monk, Berman, Kupfer, 1988); Trauma: CROPS- Child Report of Post-Traumatic Symptoms (Greenwald & Rule, 1999); Anxiety: STAI- State Trait Angst Inventar (Laux, Glanzmann, Schaffner, & Spielberger, 1981). | — |
Countries
Germany
Contacts
Public ContactTanja Legenbauer
LWL-Universitätsklinik Hamm der Ruhr-Universität Bochum
Outcome results
None listed